Will not rust-substantially out-performs standard fitting brushes. Long lasting stainless steel bristles will not contaminate solder joints. Spark-proof: made from 300 series stainless steel that meets MIL and ASTM specifications where a spark-proof brush is specified (oxygen and similar explosive gas atmospheres).
- Double stem (4 wire) double-spiral construction.
- The ASTM Spec has been approved for use by agencies of the US Department of Defense (MIL SPEC).
- Lifetime Gaurantee